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Mariappan_S_156's avatar
Mariappan_S_156
Icon for Nimbostratus rankNimbostratus
Dec 25, 2014

Daily restart f5 device

Hi all,

 

Currently we using f5 as SSLVPN for 850 remote users. Daily the memory usage reached reached 70%. If we restart the device the memory reached 45%. It is advice-able to restart the f5 device daily basics and if yes then what is the best method to restart the device.

 

Pls share your idea's

 

7 Replies

  • i think it is not normal that memory used is not decreased when number of users is reduced. shouldn't you open a support case to check?

     

  • Hi nitass,

     

    Not you mentioned. The problem was the memory usage getting increasing with out the device restarting for couple of days. Not due to user increasing / decreasing.

     

    Please advice on this case.

     

  • Hamish's avatar
    Hamish
    Icon for Cirrocumulus rankCirrocumulus

    Certain versions have had memory leaks in usage. Check with tmstat what's using the memory. Also upload a qkview to iHealth. It'll generally identify where you're vulnerable to bugs and advise what version you need to fix them.

     

  • memory leakage issues are seldom openly published by F5 (SOL in AskF5) and I believe it won't show either in iHealth (but anyway worth a try of course).

    Do you see similar LTM log entries?

    tmm1[11298]: 011e0003:4: Aggressive mode sweeper: 1 Connections killed
    tmm1[11298]: 011e0002:4: sweeper_update: aggressive mode deactivated. (424058/500224 pages)
    

    What effect do you have on user's connections when high memory usage?

    running "tmctl -a" and looking at the tmm.pagemem section, what are the value you get (when high mem)?

  • Hamish's avatar
    Hamish
    Icon for Cirrocumulus rankCirrocumulus

    I think you'll find that iHealth does indeed tell you if you're susceptible to any known bugs that cause memory leaks. It wouldn't be a very good tool if it didn't...

     

    H

     

  • shaggy's avatar
    shaggy
    Icon for Nimbostratus rankNimbostratus

    are you able to determine what process is using such high memory?

    tmsh show sys memory

    also, as Nitass mentioned earlier, you should open a support case as your high memory consumption might be an already-known issue.